Tiller attachment for plows



July 3l, 1951 J. LOTHEN 4 2,562,625

' TILLER ATTACHMENT FOR PLows Filed sept. 27, 1948 3 @s 1,6 J7 FLgCl 1".; [Q ol l /jy i' j z5 15i12 A ,QT-'ef 20,2 Z626 Z5 EZ 473 5 INVENTOR.

S 3 H (glules Lofe/L Afm-neg Patented July 31, 1951 UNITED STATES PATENT QFFICE 2,562,625 TILLER ATTACHMENT FOR PLOWS Julius Lothen, Winger, Minn. Application-September 27, 1948, Serial No. 51,337

3 Claims.

The invention relates to plow attachments and more particularly to a tiller attachment.

The primary object of the invention is to provide an upwardly curved spring tiller attachment adapted to be detachably secured to the moldboard of a plow.

Another object of the invention is to provide a tiller attachment of the character indicated above adapted to be adjusted so that it follows the plow in the preceding open furrow and works the soilturned by the adjacent plow from the bottom of theseed bed.

A further object of the invention is to provide a tiller attachment adapted to be detachably secured to an arm attached to and laterally extending from a plow beam.

The invention consists in the details of construction and in the combination of the several parts of my improved plow attachments whereby certain advantages are attained, as will be hereinafter more fully set forth.

In order that my invention may be better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure l is a view in top plan of the rear end portion of a plow beam to which a laterally ex- .tending arm and the moldboard of a plow is secured, a tiller attachment in accordance with the Figure 3 is a view in section taken on line 3-3 in Figure 1.

Figure 4 is a view in section taken on line 4 4 in Figure 1.

Figure 5 is a view in section taken on line 5-5 in Figure 4.

Figure 6 is a view in section taken on line 6-6 inFigure 5.

Figure 7 is a View in perspective of a hinge member used for connecting thespring tiller in accordance with the present invention with"` a plow.

The tiller attachment as herein embodied comprises a tiller arm A consisting of a straight bar I provided adjacent to one of its ends hereinafter called the front end, with a plurality of equidistantly spaced holes II. A lower tiller member I2 has a straight front portion I3 and an upwardly curved rear end portion I4. An upper tiller member I has a straight front end portion I6 and an upwardly curved rear end portion Il. The straight front end portion I3 of the lower tiller member I2 is arranged underneath the rear .end portion of the straight bar Iil and the straight front end portion IS of the upper tiller member I5 is placed on top of the rear end portion of the straight bar I0. The three overlying end portions are held rigidly together by means of a plurality of screws I8. The curved rear end portion I1 of the upper tiller member I5 is offset downwardly as at I9 so that th/e said end portion is arranged in close contact with the rear end portion I4 of the lower tiller member I2. The end portion I'l extends upwardly and forwardly beyond the end portion I4.

A hinge member H comprises a flat bottom 20 having a narrowed front end portion 2| provided with a centrally located tapped hole 22. At each longitudinal side edge the bottom 20 is provided with an upwardly7 extending flange 23. In each ange 23 a hole 24 is arranged adjacent to the front edge of the flange so that the two holes are coaxial with each other. The rear end portion of the iiat bottom 20 tapers rearwardly so that the front end portion of the straight bar I0 iits snugly between the rear ends of the flanges 23. A pair of holes 25 are provided in the rear end portion of the flat bottom 20 so that the holes II in the straight bar can be arranged coaxially therewith and bolts 26 extend through the holes I I and 25 and secure the hinge member H to the straight bar I0.

In Figures 1 and 2 a plow beam 21 is indicated on which a clamp C is adjustably and removably secured. The clamp C comprises a plate 28 adapted to be placed flatly against the outside of the plow beam 2l so that it projects above and below said beam. A second clamp plate 29 is arranged on the other side of the plow beam oppositely to the rst named clamp plate 28 and a plurality of bolts 30 extending through the two clamp plates above and below the plow beam 21 secure the plates on the beam in adjusted position. An arm 3I is fastened in any preferred lconventional manner to the first named clamp plate 28 and projects at right angles laterally therefrom, The outer portion 32 of said arm is bent downwardly at a right angle and a diametrical hole 33 is provided in the arm portion 32 adjacent to the lower end thereof and extends parallel to the arm portion 3 I.

The lower end portion of the arm portion 32 l is arranged between the anges 23 of the hinge member H, and a pin 34 or the like extending through the holes 24 in said flanges 23 and the hole 33 in the arm portion 32 attaches the hinge aseaeas member H and the tiller members l0, l2 and I5 pivotally to the arm portion 32. A cotter pin 34a prevents accidental displacement of the pin 34.

In the Figures 1, 4, 5 and 6 the tiller arm A and the hinge member H are attached to a plow moldboard by means of a bracket B comprising an angular portion 36, a second angular portion 31 and a bridge plate 38 connecting the two angularportions. The moldboard 35 is secured to the plow beam 2l rearwardly of the clamp C and the bracket B is bolted onto the rear surface of the moldboard. The legs of the bracket portion 36 extend at an obtuse angle to each other and the legs of the other bracket vportion 31 extend at an acute angle to each other. IThe bridge plate connects these two portions so that two of the angle legs extend parallel to each other and the other legs project outwardlyT from each other. The front surfaces of the last named legs are located in the same plane. The bracket B is secured to the moldboard 35 by means of bolts 39 extending through the moldboard, the secondly named legs of the bracket portions 36 and 31 and a pair of Wedge shaped washers 46 arranged between the moldboard and the angle legs to enable the latter to be tted onto various makes of plows since the moldboards of the several plows slant at different angles.

The rearwardly extending bracket legs are provided with coaxial holes V4l and the hinge vmember H is arranged so that the flanges 23 thereof are locatedoutside of these bracket legs and that the holes 24 in said iianges are coaxial with the holes 4l and the narrow iront portion 2| of the hinge bottom 20 is located underneath the bridge plate 38. A 'pin 42 vextends through the holes 24 and 4Iy and attaches the hinge member H and the tiller arm A piv'otally onto the bracket B. A set screw 4:3 extends threadedly through the tapped hole 22 in the hinge bottom portion 2l and engages the bridge plate 38 to arrange the tiller arm at a desired angle to the hinge member so that the lower tiller member l2 is located with its lower surface approximately on the seed bed bottom. A jam nut 44 on the set screw 43 prevents accidental disarrangement of the said setscrew.

In use the depth of the furrow to be made by a plow is decided and then the set screw 43 is adjusted until the lowermost portion of the lower tiller member I2 is located in the desired position. i When the furrow is then cut vby adjacent plow the loose `soil turned onto tiller arm A in preceding openvfurrow is worked from the bottom bythe tiller arm -A following the plow. The tiller armsecured to the angular `arm 3l is located in open furrow and reworks an adjacent cut and worked furrow by plow with tiller'arm A reworking 'soil `from Vthe vplow of which is vattached thereto.

I claim:

1. VA tiller arm for attachment to a plow,

comprising an elongated straight bar, means for coupling one end l'of said bar to themoldboard of the plowwfor movement therewith along a 'path paralleling the path'of travel of plow share,

4 a lower tiller arm having a straight front end portion underlying the rear end portion of the straight bar, and an upper tiller arm having a straight front end portion overlying the rear end portion of the straight bar, the overlapping portions of said arms and the bar being rigidly connected with each other and the upper tiller arm member being offset downwardly in the rear of the straight bar and disposed in close contact with the lower tiller arm, said arms having the rear ends thereof upwardly and forwardly curved.

2. A tiller attachment for a plow including an upwardly curved tiller arm having a straight frontend portion a hinge member secured to said front end of the tiller arm, said hinge member comprising a at bottom and a pair of upwardly extending flanges on the longitudinal edge portionsv of said bottom, means secured to the plow for pivotally supporting the hinge member, said means comprising a bracket having two angular portions one of which being shaped to have an obtuse apex angle and the other an acute apex angle, and a bridge plate connecting two legs of said angular portions so that said legs extend parallel to each other, the other legs being secured to the moldboard of the plow.

3. A Vtiller attachment for a plow, including an upwardly curved tiller arm having a straight front end portion, a hinge member secured to said front end portion of the tiller arm, said hinge member having a flat bottom portion and a pair of upwardly extending flanges on the longitudinal edges of the bottom portion, means secured 'to the .plow for pivotally supporting said hinge member, said means comprising a bracket having two angular portions one of which is shaped to have an obtuse apex angle and the other one an acute apex angle, a bridge plate connecting two legs of said angular portions so that said legs extend parallel to each other, the other legs being secured tothe moldboard of the plow, the rst named legs being pivotally connected with the flanges of said hinge member, the bottom of said hinge Vmember extending forwardly under the bridge plate, and a set screw extending through the front end portion of the hinge bottom and engaging the bridge plate to adjust the tiller arm selectively at a preferred angle with respect to the bracket.

JULIUS LOTHEN.

REFERENCES CITED The following references are of record in the le of this patent:

VU'rlirfrisn STATS PATENTS 

